.my-dropdown-box {
    display: inline-block;
    position: relative;
    z-index: 999;
    .my-dropdown-title {
        display: flex;
    }

}
.my-dropdown-item-box {
    position: fixed;
    z-index: 999;
    list-style: none;
    min-width: 50px;
    max-width: 150px;
    white-space: nowrap;
    margin: 0;
    padding: 4px;
    background-color: #ffffff;
    background-clip: padding-box;
    border-radius: 8px;
    box-shadow: 0 6px 16px 0 rgba(0, 0, 0, 0.08), 0 3px 6px -4px rgba(0, 0, 0, 0.12), 0 9px 28px 8px rgba(0, 0, 0, 0.05);
    li {
        clear: both;
        margin: 0;
        padding: 5px 12px;
        color: rgba(0, 0, 0, 0.88);
        font-weight: normal;
        font-size: 14px;
        line-height: 1.5714285714285714;
        cursor: pointer;
        transition: all 0.2s;
        border-radius: 4px;
        &:hover {
            background-color: rgba(0, 0, 0, 0.04);
        }
    }
}